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相对渗透率是描述孔隙介质中多相流的重要参数。解释相对渗透率驱替试验的方法一般是Johnson-Bossler-Naumann法。在这一方证中忽略了毛细管压力，因此，试验是在很高的驱替速率下进行的，比起油藏开发中驱替速率似乎还要高很多；其另一个缺点是相对渗透率只能在饱和度纵剖面中冲击波之外不大的饱和区间内确定。本文根据就地测量的饱和度和相压力，提出了一种方法来解释考虑毛细管压力时的驱替试验。这些试验可以在很低的流速下进行，并且可以确定各种饱和度下的相对渗透率。该方法是用模拟的输入数据来论证的。
Relative permeability is an important parameter to describe multiphase flow in porous media. The method of explaining the relative permeability displacement test is generally the Johnson-Bossler-Naumann method. Capillary pressure is neglected in this case and therefore the test is carried out at very high displacement rates, which appears to be much higher than the displacement rate during reservoir development; another disadvantage is that the relative permeability can only be In the saturation profile in the shock wave is not large outside the saturation interval to determine. In this paper, a method is proposed to explain the displacement test considering the capillary pressure, based on the saturation and phase pressure measured in situ. These tests can be performed at very low flow rates, and the relative permeability at various saturations can be determined. This method is validated using simulated input data.